[INFO] fetching crate carol-test 1.0.35...
[INFO] checking carol-test-1.0.35 against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] extracting crate carol-test 1.0.35 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate carol-test 1.0.35 on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carol-test 1.0.35
[INFO] finished tweaking crates.io crate carol-test 1.0.35
[INFO] tweaked toml for crates.io crate carol-test 1.0.35 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate carol-test 1.0.35 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 889e4f43453c799a20d02250f861e56151b503e5018e4db7c92666fe6f6a84d4
[INFO] running `Command { std: "docker" "start" "-a" "889e4f43453c799a20d02250f861e56151b503e5018e4db7c92666fe6f6a84d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "889e4f43453c799a20d02250f861e56151b503e5018e4db7c92666fe6f6a84d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889e4f43453c799a20d02250f861e56151b503e5018e4db7c92666fe6f6a84d4", kill_on_drop: false }`
[INFO] [stdout] 889e4f43453c799a20d02250f861e56151b503e5018e4db7c92666fe6f6a84d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe18ce95051ac934c7772e8a34960f8350587abaf828e7a0231fba8a93707c0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fe18ce95051ac934c7772e8a34960f8350587abaf828e7a0231fba8a93707c0b", kill_on_drop: false }`
[INFO] [stderr]     Checking carol-test v1.0.35 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "fe18ce95051ac934c7772e8a34960f8350587abaf828e7a0231fba8a93707c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe18ce95051ac934c7772e8a34960f8350587abaf828e7a0231fba8a93707c0b", kill_on_drop: false }`
[INFO] [stdout] fe18ce95051ac934c7772e8a34960f8350587abaf828e7a0231fba8a93707c0b